style.css

@import "animate.css";

body {
	font: 'Raleway', sans-serif;
    text-align: center;
	background: linear-gradient(to right, rgb(106, 66, 189), rgb(255, 0, 0)); /* Standard syntax */
}

h1 {
    font: 600 3.5em 'Raleway', sans-serif;
    color: rgba(0,0,0,.7);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: .2em;
    width: 100%;
}

/****************/

.grid {

  margin: 30px;
  display: flex;
  justify-content: center;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 20px;
  align-items: stretch;

  }

.grid > article {
  border: 1px solid #ccc;
  box-shadow: 15px 11px 6px 0px  rgba(0,0,0,0.3);
  border-radius: 3px;
  text-align: center;
}

.text {
  padding: 0 20px 20px;
}

button {
  background-color:rgba(0,0,0,0.7);
  border: none;
  color: white;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  padding: 5px 10px;
}

button:hover{
  transition: transform .1s ease-out;
  transform: translateY(5px);
}


@media (max-width: 768px){
  .grid{
    grid-template-columns: repeat(2, 1fr);
    margin: 0;
  }
  .buffer{
    height:2rem;
  }
}

@media (max-width: 500px){
  .grid{
    grid-template-columns: repeat(1, 1fr);
    margin: 0;
  }

  .grid > article{
    text-align: center;
  }
  .buffer{
    height:2rem;
  }
}